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The Dexes / Satellite Orbital Decay / 42965

CelestialObjectDex · Satellite Orbital Decay

QZS-4 (MICHIBIKI-4)

42965 · 2026-04-03T13:27:18Z

Fixes
120
Observations
120
Altitude — track
120 measured points · 2026-04-032026-08-22
Mean motion — track
120 measured points · 2026-04-032026-08-22

The record

Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.

Start UTCstart_utc2026-04-03T13:27:18.634176+00:00
End UTCend_utc2026-08-22T14:33:31.629312+00:00
Familyfamilycelestialdex
NORAD IDnorad_id42,965
Object nameobject_nameQZS-4 (MICHIBIKI-4)
Groupgroupactive
Eccentricity medianeccentricity_median0.075
Inclination deg medianinclination_deg_median40.107
Number of snapsn_snaps120
Span (days)span_days141.046
Mean motion firstmean_motion_first1.003
Mean motion lastmean_motion_last1.003
Delta mean motiondelta_mean_motion0.000
Altitude first (km)altitude_first_km35786.252
Altitude last (km)altitude_last_km35784.049
Decay rate rev day2decay_rate_rev_day20.000
Altitude decay km dayaltitude_decay_km_day-0.066
Decay notedecay_notemean_motion slope (rev/day^2) and altitude slope (km/day) from least-squares fit of measured GP elements; altitude from Kepler a=(GM/n^2)^(1/3) - R_earth
First UTCfirst_utc2026-04-03T13:27:18.634176+00:00
Last UTClast_utc2026-08-22T14:33:31.629312+00:00
Last fix UTClast_fix_utc2026-08-22T14:33:31.629312+00:00
Provisionalprovisionalfalse
Tracktrack[{"utc":"2026-04-03T13:27:18.634176+00:00","mean_motion":1.00273009,"altitude_km":35786.252,"eccentricity":0.07474878,"inclination_deg":40.1534},{"utc":"2026-04-04T13:24:47.032416+00:00","mean_motion"
Total sensor hitstotal_sensor_hits0

Provenance

  • celestrak

Storage: dossier · celestial_storehouse/satellite_decay/42965.json

QZS-4 (MICHIBIKI-4) — Satellite Orbital Decay — TerraPulse